const layui=require("layui-layer");
import public_scss from "./../sass/public.scss";
import login_scss from "./../sass/login.scss";

$(function(){
    code_draw();
    // 点击后刷新验证码
        $("#canvas").on('click', function() {
            code_draw();
        })

    $("#login").submit(function(){
        // 将输入的内容转为大写，可通过这步进行大小写验证
        var val = $(".input-val").val().toLowerCase();
        // 获取生成验证码值
        var num = $('#canvas').attr('data-code');

        if(val==''){
            layer.msg('请输入验证码!',{icon:2});
            return false;
        }

        if(val != num){
            layer.msg('验证码输入有误!',{icon:2});
            return false;
        }

        // 发送数据到后台
        console.log($("#login").serialize());
        $.ajax({
            url:"http://10.41.151.78:8081/api/login",
            data:$("#login").serialize(),
            type:"post",
            dataType:"json"
        }).then(function(res){
            console.log(res);
            layer.msg(res.msg,{icon:res.status == 200 ? 1 : 2});
            setInterval(function(){
                window.location.href="./index.html";
            },2000)
            
            // 登陆成功后 把当前登陆者的数据存储到 localStorage 中
            // localStorage 存储本地，5m,不手动清除，就永久存在

            if(res.status == 200){
                
                localStorage.setItem("goods_car",JSON.stringify(res.data[0]));
                
            }

            if(res.status != 200){
                draw(show_num);  //重新生成验证码
                //draw(show_num);  //重新生成验证码
            }
                
        })

        return false;
    })
})



function code_draw() {
    var canvas_width = $("#canvas").width();
    var canvas_height = $("#canvas").height();
    var canvas = document.getElementById("canvas");
    var context = canvas.getContext("2d");
    canvas.width = canvas_width;
    canvas.height = canvas_height;
    var sCode = "A,B,C,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,W,X,Y,Z,1,2,3,4,5,6,7,8,9,0";
    var aCode = sCode.split(",");
    var aLength = aCode.length;
    var value = [];
    for (var i = 0; i <= 3; i++) {
      var j = Math.floor(Math.random() * aLength);
      var deg = (Math.random() * 30 * Math.PI) / 180;
      var txt = aCode[j];
      value[i] = txt.toLowerCase();
      var x = 10 + i * 20;
      var y = 20 + Math.random() * 8;
      context.font = "bold 23px 微软雅黑";
      context.translate(x, y);
      context.rotate(deg);
      context.fillStyle = code_randomColor();
      context.fillText(txt, 0, 0);
      context.rotate(-deg);
      context.translate(-x, -y);
    }
    value = value.join("");
    $("#canvas").attr("data-code", value);
    for (var i = 0; i <= 5; i++) {
      context.strokeStyle = code_randomColor();
      context.beginPath();
      context.moveTo(Math.random() * canvas_width, Math.random() * canvas_height);
      context.lineTo(Math.random() * canvas_width, Math.random() * canvas_height);
      context.stroke();
    }
    for (var i = 0; i <= 30; i++) {
      context.strokeStyle = code_randomColor();
      context.beginPath();
      var x = Math.random() * canvas_width;
      var y = Math.random() * canvas_height;
      context.moveTo(x, y);
      context.lineTo(x + 1, y + 1);
      context.stroke();
    }
  }
  function code_randomColor() {
    var r = Math.floor(Math.random() * 256);
    var g = Math.floor(Math.random() * 256);
    var b = Math.floor(Math.random() * 256);
    return "rgb(" + r + "," + g + "," + b + ")";
  }